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160420 = 22513617
BaseRepresentation
bin100111001010100100
322011001111
4213022210
520113140
63234404
71235461
oct471244
9264044
10160420
11aa587
1278a04
1358030
1442668
15327ea
hex272a4

160420 has 24 divisors (see below), whose sum is σ = 363384. Its totient is φ = 59136.

The previous prime is 160409. The next prime is 160423. The reversal of 160420 is 24061.

160420 = 142 + 152 + ... + 782.

It can be written as a sum of positive squares in 4 ways, for example, as 5184 + 155236 = 72^2 + 394^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 160420.

It is not an unprimeable number, because it can be changed into a prime (160423) by changing a digit.

160420 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49 + ... + 568.

It is an arithmetic number, because the mean of its divisors is an integer number (15141).

2160420 is an apocalyptic number.

160420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

160420 is an abundant number, since it is smaller than the sum of its proper divisors (202964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

160420 is a wasteful number, since it uses less digits than its factorization.

160420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 160420 is about 400.5246559202. The cubic root of 160420 is about 54.3358131362.

Adding to 160420 its reverse (24061), we get a palindrome (184481).

The spelling of 160420 in words is "one hundred sixty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 617 1234 2468 3085 6170 8021 12340 16042 32084 40105 80210 160420